79398835040 has 48 divisors (see below), whose sum is σ = 214376857632. Its totient is φ = 27222457344.

The previous prime is 79398835039. The next prime is 79398835051. The reversal of 79398835040 is 4053889397.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35444789 + ... + 35447028.

It is an arithmetic number, because the mean of its divisors is an integer number (4466184534).

Almost surely, 2^79398835040 is an apocalyptic number.

79398835040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79398835040 is an abundant number, since it is smaller than the sum of its proper divisors (134978022592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79398835040 is a wasteful number, since it uses less digits than its factorization.

79398835040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70891839 (or 70891831 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 79398835040 in words is "seventy-nine billion, three hundred ninety-eight million, eight hundred thirty-five thousand, forty".